Endovascular treatment of distal anterior cerebral artery aneurysms: Long-term results

Global outflow angle influences silent ischemic events in coil embolization for unruptured distal anterior cerebral artery aneurysms

“…The rate of perioperative complications has ranged from 4.2% to 17.2%. 9,10,12,[14][15][16][17] The rate of perioperative complications was 17% in the present study, similar to that reported in previous studies. In previous studies, the rate of procedure-related mortality was 2.9%-9%, and procedure-related morbidity was 8%.…”

“…In previous reports of coil embolization for DACA aneurysms, the rate of immediate angiographic CO has ranged from 23.1% to 100%. 9,10,12,14–17 In the present study, the rate of immediate angiographic CO was 8.3%, and the rate of immediate angiographic CO and NR combined was 66.7%. However, the rate of angiographic CO at 1 year after the procedure was 75%, and rupture caused by treated aneurysm was not detected during the follow-up period.…”

“…The rate of re-treatment generally ranged from 8% to 30%. 9,10,12,14–17 The rate of re-treatment was 16.7% in the present study.…”

“…11–14 There are several reports of coil embolization for unruptured DACA aneurysms in the literature. 9,10,12,14–17…”

“…[11][12][13][14] There are several reports of coil embolization for unruptured DACA aneurysms in the literature. 9,10,12,[14][15][16][17] Although antiplatelet therapy is widely used for prevention of thromboembolic events, these events continue to be an important complication of coil embolization for cerebral aneurysms. Thromboembolic events can manifest as follows: 1) thrombus formation observed during the procedure; 2) clinical ischemic symptoms, recognized as ischemia on neurological evaluation, which can be a transient ischemic attack or a permanent ischemic infarction; and 3) silent ischemic events, abnormalities detected by diffusion-weighted magnetic resonance imaging (DW-MRI).…”